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Lesson 12-4 Pages 532-535. Surface Area of Rectangular Prisms. What you will learn!. How to find the surface area of rectangular prisms. Vocabulary. What you really need to know!.
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Lesson 12-4Pages 532-535 Surface Area of Rectangular Prisms
What you will learn! How to find the surface area of rectangular prisms.
What you really need to know! The surface area S of a rectangular prism with length l, width w, and height h, is the sum of the areas of the faces.
5 cm 3 cm 3 cm 3 cm 4 cm 5 cm 4 cm 4 cm 3 cm 4 cm 5 cm
Example 1: Find the surface area of the rectangular prism. 3 cm 2 cm 6 cm
Example 2: Find the surface area of the rectangular prism. 12 in 8 in 10 in
Example 3: Drew is putting together a cardboard box that is 9 inches long, 6 inches wide, and 8 inches high. He bought a roll of wrapping paper that is 1 foot wide and 3 foot long. Did he buy enough to wrap the box?
Cardboard box Wrapping paper Yes! He bought enough!
Page 533 Guided Practice #’s 4-6
Read: Pages 532-533 with someone at home and study examples!
Homework: Page 534-535 #’s 7-20 all #’s 25-36 all
Page 594 Lesson 12-4